APA Citation

 Babbie, E. (1990).  Survey research methords.  Wadsworth Pub. Co.

Trích dẫn kiểu Chicago

 Babbie, Earl.  Survey Research Methords.  Wadsworth Pub. Co, 1990.

MLA Citation

 Babbie, Earl.  Survey Research Methords.  Wadsworth Pub. Co, 1990.

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